Hans j steinberg (74 resultados)

Paperback. Condición: new. Paperback. Everything There Is to Know About MoonstoneDiscover the complete world of moonstone-from adularescence and feldspar mineralogy to identification, varieties, value, collecting, jewelry, history, and care.Everything There Is to Know About Moonstone by Hans J Steinberg is a comprehensive guide to one of the world's most recognizable phenomenal gemstones. Known for its mysterious floating glow, moonstone has fascinated collectors, jewelers, gemologists, historians, and gemstone enthusiasts for generations.But what actually causes moonstone's famous adularescence? What is the difference between blue moonstone, white moonstone, peach moonstone, cat's-eye moonstone, star moonstone, and rainbow moonstone? Is rainbow moonstone really moonstone? How can you identify genuine moonstone, recognize imitations, and understand what makes one stone far more valuable than another?This accessible reference explores moonstone from both a scientific and practical perspective, combining gemology, mineralogy, geology, history, gemstone identification, grading, collecting, lapidary work, jewelry, and buying advice in one complete guide.Inside, you'll discover: What moonstone is and how it fits within the feldspar mineral groupHow orthoclase, albite, labradorite, and related feldspars differHow moonstone forms through crystallization, cooling, exsolution, pegmatitic processes, weathering, and secondary depositsThe science behind adularescence, blue sheen, white sheen, cat's-eye effects, stars, and other optical phenomenaThe differences between colorless, blue, white, peach, orange, yellow, gray, brown, and rainbow moonstoneFamous moonstone sources in Sri Lanka, India, Myanmar, Madagascar, Tanzania, Brazil, the United States, and beyondMoonstone's role in ancient traditions, South Asian culture, European jewelry, Art Nouveau, and modern gemstone designThe truth behind moonstone folklore involving the moon, love, fertility, intuition, protection, travel, and spiritual symbolismHow to distinguish natural moonstone, treated stones, synthetic substitutes, glass, opalite, quartz, chalcedony, and other imitationsWhy commercial rainbow moonstone is generally labradorite, not traditional orthoclase moonstoneHow gemologists test moonstone using refractive index, specific gravity, microscopy, polarization, spectroscopy, and other methodsHow to evaluate adularescence, transparency, body color, clarity, sheen position, cut, size, origin, and rarityWhy fine transparent blue-sheen moonstone can command substantial premiumsHow moonstone is cut, oriented, polished, carved, faceted, and shaped into cabochons, beads, and jewelryWhat buyers and collectors should know about laboratory reports, provenance, locality claims, antique moonstone jewelry, auctions, scams, and investment risksHow to properly clean, store, wear, repair, and preserve moonstone jewelryWhether you're researching your first moonstone purchase, studying gemstone identification, building a mineral or jewelry collection, exploring rainbow moonstone, or simply fascinated by gemstones with unusual optical effects, Everything There Is to Know About Moonstone provides a practical foundation for understanding this remarkable gem.Learn how to identify real moonstone, understand adularescence, compare moonstone varieties, recognize imitations, evaluate quality and value, and buy with greater confidence.An essential reference for moonstone collectors, gemstone enthusiasts, jewelry buyers, gemology students, lapidaries, mineral collector Shipping may be from multiple locations in the US or from the UK, depending on stock availability.…

Paperback. Condición: new. Paperback. Everything There Is to Know About JadeDiscover the complete world of jade-from jadeite and nephrite to imperial jade, ancient Chinese masterpieces, gemstone identification, treatments, grading, collecting, value, jewelry, and investment.Everything There Is to Know About Jade by Hans J Steinberg is a comprehensive and accessible guide to one of the world's most fascinating, valuable, and culturally important gemstones.Jade has been treasured for thousands of years, yet the word jade actually describes two different mineral materials: jadeite and nephrite. From brilliant green imperial jadeite and delicate lavender jade to white mutton-fat nephrite, icy jade, ancient carvings, bangles, beads, pendants, and monumental works of art, jade encompasses an extraordinary range of colors, qualities, histories, and values.But how can you tell real jade from fake jade? What is the difference between jadeite vs nephrite? Why can exceptional jadeite sell for extraordinary prices while other jade remains affordable? And how can buyers recognize Type A, Type B, Type C, dyed, bleached, polymer-treated, synthetic, and imitation jade?This detailed jade reference answers those questions and much more.Inside, you'll discover: The essential differences between jadeite and nephrite jadeHow jade forms in subduction zones, metamorphic environments, serpentinite bodies, and secondary depositsThe characteristics of imperial green jade, lavender jade, icy jade, black jade, white jade, spinach jade, and mutton-fat nephriteFamous jade sources in Myanmar, China, Guatemala, Russia, Canada, New Zealand, Japan, Kazakhstan, and beyondThe extraordinary history of jade in ancient China, Mesoamerica, Maori culture, Central Asia, and the international gemstone tradeThe meaning of jade in Chinese culture, philosophy, symbolism, burial traditions, imperial art, and jewelryHow to recognize natural, treated, synthetic, reconstructed, and imitation jadeWhat Type A, Type B, Type C, and Type B+C jadeite actually meanHow gemologists identify jade using refractive index, specific gravity, microscopy, FTIR, Raman spectroscopy, fluorescence, and other testsHow color, translucency, texture, clarity, craftsmanship, size, treatment, and provenance determine jade quality and valueHow jade is cut, carved, polished, made into bangles, beads, cabochons, pendants, figurines, and works of artWhat collectors should know about jade auctions, laboratory reports, antique jade, provenance, scams, pricing, and investment risksHow to safely clean, store, wear, conserve, and protect jade jewelry and antique carvingsHow modern mining, ethical sourcing, laboratory technology, Chinese demand, and changing tastes may shape the future of the jade marketWhether you're researching your first jade purchase, trying to identify a family heirloom, learning about Chinese jade, building a gemstone collection, studying gemology, or simply fascinated by this legendary material, Everything There Is to Know About Jade provides a practical foundation for understanding jade with greater confidence.Learn how to identify jade, understand jadeite and nephrite, recognize treatments and imitations, evaluate quality and value, appreciate ancient jade traditions, and become a more knowledgeable buyer and collector.An essential reference for jade collectors, gemstone enthusiasts, jewelry buyers, gemology students, rock and mineral collectors, antique collectors, lapidaries, and anyone interested in Chinese jade, imperial jadeite, nephrite, and pr Shipping may be from multiple locations in the US or from the UK, depending on stock availability.…

Paperback. Condición: new. Paperback. Turquoise is one of the oldest gemstones known to humanity, yet it is also one of the most misunderstood.For thousands of years, turquoise has been mined, traded, worn, carved, collected, and treasured across Egypt, Persia, Central Asia, China, Tibet, the Americas, and the American Southwest. Its unmistakable blue and green colors have appeared in royal ornaments, ancient burial goods, religious objects, Native American jewelry, and some of the most recognizable gemstone designs in the world.But the modern turquoise market is complicated.What separates valuable natural turquoise from stabilized material? Why does turquoise from one mine command dramatically more than visually similar material from another? What exactly is spiderweb matrix? How can dyed howlite, magnesite, reconstructed turquoise, block material, and other imitations be recognized? And when does a famous mine name genuinely add value?This book provides a practical and detailed introduction to turquoise from both a gemological and collecting perspective.Beginning with the mineral itself, it explains how turquoise forms, why copper produces its characteristic blue color, why some material turns green, how matrix develops, and why certain geological environments produce much harder and denser turquoise than others.It then explores the major turquoise-producing regions of the world, including historic Persian and Nishapur turquoise, the Sinai Peninsula, China, Tibet, Mexico, Central Asia, and the famous turquoise deposits of the United States. Particular attention is given to American turquoise, including Arizona, Nevada, New Mexico, Sleeping Beauty, and Kingman.The historical chapters follow turquoise through ancient Egypt, Persian culture, the Silk Road, Tibet, China, pre-Columbian civilizations, and Native American traditions of the Southwest.The book also examines one of the most important subjects for modern buyers: the difference between natural, treated, synthetic, reconstructed, composite, and imitation turquoise. Stabilization, impregnation, waxing, dyeing, block turquoise, synthetic turquoise, dyed howlite, dyed magnesite, glass, plastic, and ceramic substitutes are explained clearly, along with their effects on durability and value.Readers will also learn how turquoise is examined and tested using visual observation, magnification, hardness, specific gravity, refractive index, spectroscopy, and advanced laboratory techniques. Common identification mistakes are addressed, including the dangers of relying on color, matrix, mine appearance, or destructive home tests.For collectors and buyers, the book explains how turquoise quality and value are actually assessed. Color, saturation, density, matrix, treatment, size, cutting, mine origin, provenance, rarity, and market demand are considered separately, avoiding the unreliable AAA-style grading systems commonly encountered online.It also looks at turquoise as a collectible asset: how to buy loose stones, rough, beads, and jewelry; how to evaluate old-stock and closed-mine material; how to document a collection; when laboratory testing is worthwhile; and why provenance can become as important as the stone itself.Finally, the book covers cutting, setting, jewelry use, cleaning, storage, restoration, and the changing future of the turquoise market as famous deposits become scarcer and treatments and imitations become increasingly sophisticated.Whether you are a gemstone collector, jeweler, lapidary, antique enthusiast, mineral collector, or simply want to understand what you are actually buying, this book provides a complete foundation for appreciating turquoise beyond its color.Turquoise is not simply a blue stone. It is a mineral shaped by geology, transformed by craftsmanship, carried across ancient tra Shipping may be from multiple locations in the US or from the UK, depending on stock availability.…

Taschenbuch. Condición: Neu. Neuware.

Paperback. Condición: new. Paperback. Everything There Is to Know About JadeDiscover the complete world of jade-from jadeite and nephrite to imperial jade, ancient Chinese masterpieces, gemstone identification, treatments, grading, collecting, value, jewelry, and investment.Everything There Is to Know About Jade by Hans J Steinberg is a comprehensive and accessible guide to one of the world's most fascinating, valuable, and culturally important gemstones.Jade has been treasured for thousands of years, yet the word jade actually describes two different mineral materials: jadeite and nephrite. From brilliant green imperial jadeite and delicate lavender jade to white mutton-fat nephrite, icy jade, ancient carvings, bangles, beads, pendants, and monumental works of art, jade encompasses an extraordinary range of colors, qualities, histories, and values.But how can you tell real jade from fake jade? What is the difference between jadeite vs nephrite? Why can exceptional jadeite sell for extraordinary prices while other jade remains affordable? And how can buyers recognize Type A, Type B, Type C, dyed, bleached, polymer-treated, synthetic, and imitation jade?This detailed jade reference answers those questions and much more.Inside, you'll discover: The essential differences between jadeite and nephrite jadeHow jade forms in subduction zones, metamorphic environments, serpentinite bodies, and secondary depositsThe characteristics of imperial green jade, lavender jade, icy jade, black jade, white jade, spinach jade, and mutton-fat nephriteFamous jade sources in Myanmar, China, Guatemala, Russia, Canada, New Zealand, Japan, Kazakhstan, and beyondThe extraordinary history of jade in ancient China, Mesoamerica, Maori culture, Central Asia, and the international gemstone tradeThe meaning of jade in Chinese culture, philosophy, symbolism, burial traditions, imperial art, and jewelryHow to recognize natural, treated, synthetic, reconstructed, and imitation jadeWhat Type A, Type B, Type C, and Type B+C jadeite actually meanHow gemologists identify jade using refractive index, specific gravity, microscopy, FTIR, Raman spectroscopy, fluorescence, and other testsHow color, translucency, texture, clarity, craftsmanship, size, treatment, and provenance determine jade quality and valueHow jade is cut, carved, polished, made into bangles, beads, cabochons, pendants, figurines, and works of artWhat collectors should know about jade auctions, laboratory reports, antique jade, provenance, scams, pricing, and investment risksHow to safely clean, store, wear, conserve, and protect jade jewelry and antique carvingsHow modern mining, ethical sourcing, laboratory technology, Chinese demand, and changing tastes may shape the future of the jade marketWhether you're researching your first jade purchase, trying to identify a family heirloom, learning about Chinese jade, building a gemstone collection, studying gemology, or simply fascinated by this legendary material, Everything There Is to Know About Jade provides a practical foundation for understanding jade with greater confidence.Learn how to identify jade, understand jadeite and nephrite, recognize treatments and imitations, evaluate quality and value, appreciate ancient jade traditions, and become a more knowledgeable buyer and collector.An essential reference for jade collectors, gemstone enthusiasts, jewelry buyers, gemology students, rock and mineral collectors, antique collectors, lapidaries, and anyone interested in Chinese jade, imperial jadeite, nep Shipping may be from our UK warehouse or from our Australian or US warehouses, depending on stock availability.…

Paperback. Condición: new. Paperback. Everything There Is to Know About MoonstoneDiscover the complete world of moonstone-from adularescence and feldspar mineralogy to identification, varieties, value, collecting, jewelry, history, and care.Everything There Is to Know About Moonstone by Hans J Steinberg is a comprehensive guide to one of the world's most recognizable phenomenal gemstones. Known for its mysterious floating glow, moonstone has fascinated collectors, jewelers, gemologists, historians, and gemstone enthusiasts for generations.But what actually causes moonstone's famous adularescence? What is the difference between blue moonstone, white moonstone, peach moonstone, cat's-eye moonstone, star moonstone, and rainbow moonstone? Is rainbow moonstone really moonstone? How can you identify genuine moonstone, recognize imitations, and understand what makes one stone far more valuable than another?This accessible reference explores moonstone from both a scientific and practical perspective, combining gemology, mineralogy, geology, history, gemstone identification, grading, collecting, lapidary work, jewelry, and buying advice in one complete guide.Inside, you'll discover: What moonstone is and how it fits within the feldspar mineral groupHow orthoclase, albite, labradorite, and related feldspars differHow moonstone forms through crystallization, cooling, exsolution, pegmatitic processes, weathering, and secondary depositsThe science behind adularescence, blue sheen, white sheen, cat's-eye effects, stars, and other optical phenomenaThe differences between colorless, blue, white, peach, orange, yellow, gray, brown, and rainbow moonstoneFamous moonstone sources in Sri Lanka, India, Myanmar, Madagascar, Tanzania, Brazil, the United States, and beyondMoonstone's role in ancient traditions, South Asian culture, European jewelry, Art Nouveau, and modern gemstone designThe truth behind moonstone folklore involving the moon, love, fertility, intuition, protection, travel, and spiritual symbolismHow to distinguish natural moonstone, treated stones, synthetic substitutes, glass, opalite, quartz, chalcedony, and other imitationsWhy commercial rainbow moonstone is generally labradorite, not traditional orthoclase moonstoneHow gemologists test moonstone using refractive index, specific gravity, microscopy, polarization, spectroscopy, and other methodsHow to evaluate adularescence, transparency, body color, clarity, sheen position, cut, size, origin, and rarityWhy fine transparent blue-sheen moonstone can command substantial premiumsHow moonstone is cut, oriented, polished, carved, faceted, and shaped into cabochons, beads, and jewelryWhat buyers and collectors should know about laboratory reports, provenance, locality claims, antique moonstone jewelry, auctions, scams, and investment risksHow to properly clean, store, wear, repair, and preserve moonstone jewelryWhether you're researching your first moonstone purchase, studying gemstone identification, building a mineral or jewelry collection, exploring rainbow moonstone, or simply fascinated by gemstones with unusual optical effects, Everything There Is to Know About Moonstone provides a practical foundation for understanding this remarkable gem.Learn how to identify real moonstone, understand adularescence, compare moonstone varieties, recognize imitations, evaluate quality and value, and buy with greater confidence.An essential reference for moonstone collectors, gemstone enthusiasts, jewelry buyers, gemology students, lapidaries, mine Shipping may be from our UK warehouse or from our Australian or US warehouses, depending on stock availability.…

Paperback. Condición: new. Paperback. Turquoise is one of the oldest gemstones known to humanity, yet it is also one of the most misunderstood.For thousands of years, turquoise has been mined, traded, worn, carved, collected, and treasured across Egypt, Persia, Central Asia, China, Tibet, the Americas, and the American Southwest. Its unmistakable blue and green colors have appeared in royal ornaments, ancient burial goods, religious objects, Native American jewelry, and some of the most recognizable gemstone designs in the world.But the modern turquoise market is complicated.What separates valuable natural turquoise from stabilized material? Why does turquoise from one mine command dramatically more than visually similar material from another? What exactly is spiderweb matrix? How can dyed howlite, magnesite, reconstructed turquoise, block material, and other imitations be recognized? And when does a famous mine name genuinely add value?This book provides a practical and detailed introduction to turquoise from both a gemological and collecting perspective.Beginning with the mineral itself, it explains how turquoise forms, why copper produces its characteristic blue color, why some material turns green, how matrix develops, and why certain geological environments produce much harder and denser turquoise than others.It then explores the major turquoise-producing regions of the world, including historic Persian and Nishapur turquoise, the Sinai Peninsula, China, Tibet, Mexico, Central Asia, and the famous turquoise deposits of the United States. Particular attention is given to American turquoise, including Arizona, Nevada, New Mexico, Sleeping Beauty, and Kingman.The historical chapters follow turquoise through ancient Egypt, Persian culture, the Silk Road, Tibet, China, pre-Columbian civilizations, and Native American traditions of the Southwest.The book also examines one of the most important subjects for modern buyers: the difference between natural, treated, synthetic, reconstructed, composite, and imitation turquoise. Stabilization, impregnation, waxing, dyeing, block turquoise, synthetic turquoise, dyed howlite, dyed magnesite, glass, plastic, and ceramic substitutes are explained clearly, along with their effects on durability and value.Readers will also learn how turquoise is examined and tested using visual observation, magnification, hardness, specific gravity, refractive index, spectroscopy, and advanced laboratory techniques. Common identification mistakes are addressed, including the dangers of relying on color, matrix, mine appearance, or destructive home tests.For collectors and buyers, the book explains how turquoise quality and value are actually assessed. Color, saturation, density, matrix, treatment, size, cutting, mine origin, provenance, rarity, and market demand are considered separately, avoiding the unreliable AAA-style grading systems commonly encountered online.It also looks at turquoise as a collectible asset: how to buy loose stones, rough, beads, and jewelry; how to evaluate old-stock and closed-mine material; how to document a collection; when laboratory testing is worthwhile; and why provenance can become as important as the stone itself.Finally, the book covers cutting, setting, jewelry use, cleaning, storage, restoration, and the changing future of the turquoise market as famous deposits become scarcer and treatments and imitations become increasingly sophisticated.Whether you are a gemstone collector, jeweler, lapidary, antique enthusiast, mineral collector, or simply want to understand what you are actually buying, this book provides a complete foundation for appreciating turquoise beyond its color.Turquoise is not simply a blue stone. It is a mineral shaped by geology, transformed by craftsmanship, carried acros Shipping may be from our UK warehouse or from our Australian or US warehouses, depending on stock availability.…

Taschenbuch. Condición: Neu. Neuware.

Taschenbuch. Condición: Neu. Neuware - Jeremejevite, rare gemstones, gemstone collecting, mineral identification, gemology, gemstone investing, and crystal collecting-if you want to learn everything there is to know about one of the world's rarest and most elusive gemstones, this comprehensive guide is for you.Jeremejevite is among the most coveted collector gemstones on Earth. Exceptionally scarce, naturally beautiful, and found in only a handful of locations worldwide, it has fascinated gemologists, mineral collectors, jewelers, and investors for decades. Yet despite its rarity, surprisingly little reliable information exists in one place.The Ultimate Guide to Jeremejevite brings together decades of gemological knowledge in a single, authoritative volume.Written by gemologist and mineral specialist Hans J. Steinberg, drawing on over 40 years of experience, this book explores every aspect of Jeremejevite-from its discovery in Siberia to the world-famous Namibian deposits that produce today's finest gemstones.Inside you'll discover: - What Jeremejevite is and why it is one of the world's rarest gemstones- Its fascinating history and geological formation- Physical and optical properties explained in plain English- Every major source, including Namibia, Russia, Madagascar, Myanmar, Tajikistan, and Germany- How gem-quality crystals are mined and recovered- The colors, clarity, and characteristics that determine value- How experts identify Jeremejevite and distinguish it from similar gemstones- Treatments, synthetics, and common imitations- Buying advice and how to avoid costly mistakes- Collecting strategies for both crystals and faceted gems- Investment potential, market trends, and auction performance- The future of Jeremejevite and its place among the world's greatest collector gemstonesWhether you are an experienced collector, professional jeweler, gemology student, investor, museum enthusiast, or simply fascinated by Earth's rarest natural treasures, this book provides a detailed yet accessible reference that you will return to for years.If you are searching for the definitive book on Jeremejevite, rare gemstones, gemstone identification, mineral collecting, or gemstone investing, your search ends here.…

Taschenbuch. Condición: Neu. Neuware.

Taschenbuch. Condición: Neu. Neuware - Green diamonds, natural green diamonds, fancy green diamonds, rare colored diamonds, green diamond grading, green diamond value, green diamond investment-this guide explores one of the most mysterious and desirable categories in the world of natural fancy color diamonds.The Ultimate Guide to Green Diamonds is a complete introduction to the science, history, rarity, grading, valuation, collecting, and investment potential of natural green diamonds. Formed over immense geological time and often colored by natural radiation exposure, green diamonds are among the most fascinating gemstones ever discovered.Inside, readers will discover how green diamonds receive their color, why natural green diamonds are so difficult to authenticate, and how laboratories distinguish natural color from treated or enhanced stones. The book explores famous green diamonds, historic discoveries, auction records, grading terminology, color modifiers, and the market forces that influence value.Readers will learn: - What makes a diamond naturally green- Why green diamonds are so rare- How radiation can create green coloration- The difference between natural, treated, and laboratory-grown green diamonds- How Fancy Light, Fancy, Fancy Intense, and Fancy Vivid Green diamonds are graded- Why origin-of-color determination is crucial- Which secondary hues affect desirability and value- How cut, clarity, and carat weight influence price- The history of famous green diamonds such as the Dresden Green- How collectors evaluate documentation, rarity, provenance, and investment potential- How to buy, insure, store, and preserve green diamonds intelligentlyCombining gemological science, collector insight, historical context, and practical buying guidance, The Ultimate Guide to Green Diamonds is an essential resource for collectors, investors, jewelers, gemology students, diamond dealers, and anyone fascinated by rare colored diamonds.…

Taschenbuch. Condición: Neu. Neuware - The Emerald Bible is a comprehensive guide to one of the world's most important gemstones. It explains what emerald is, how it forms, where it is found, how it is graded, treated, identified, cut, valued, bought, sold, and used in jewellery.The book covers the major producing regions, including Colombia, Zambia, Brazil, Ethiopia, Afghanistan, Pakistan, Russia, and Zimbabwe, with detailed attention to famous sources such as Muzo, Chivor, Coscuez, and Kafubu. It examines color, clarity, the emerald jardin, inclusions, cutting, carat weight, treatments, synthetic emeralds, simulants, laboratory testing, geographic origin, and modern valuation.Historical chapters trace emerald from ancient Egypt and Cleopatra through the Spanish conquest of South America, Mughal India, European royal collections, famous historic jewels, and the development of the modern international trade. Practical sections explain how to inspect emeralds, understand laboratory reports, recognize treatment disclosures, avoid common pricing traps, evaluate auction results, and care for emerald jewellery.Written as a factual reference rather than a romanticized account, The Emerald Bible is intended for collectors, dealers, jewellers, gemologists, students, auction professionals, and anyone seeking a detailed understanding of natural emerald.…

Taschenbuch. Condición: Neu. Neuware - Discover the complete world of amber with The Ultimate Guide to Amber-a comprehensive reference covering fossilized tree resin, Baltic amber, Dominican amber, amber fossils, gemstone identification, collecting, jewellery, valuation, and scientific discoveries.Amber is far more than a beautiful golden gemstone. Formed from ancient tree resin over millions of years, it preserves an extraordinary record of prehistoric life, including insects, plants, feathers, and even small vertebrates. It has fascinated civilizations for thousands of years, inspired myths and legends, adorned royalty, and continues to be one of the world's most unique organic gemstones.Whether you are a collector, jeweller, gem enthusiast, geology student, fossil lover, or simply curious about this remarkable natural material, The Ultimate Guide to Amber provides an in-depth exploration of every aspect of amber-from its origins in ancient forests to its place in modern science and jewellery.Inside you'll discover: - How amber forms over millions of years from tree resin- The differences between amber, copal, and synthetic imitations- Baltic, Dominican, Burmese, Mexican, and other important amber varieties- Rare colours including blue, green, red, and white amber- The fascinating world of fossil inclusions, from insects to dinosaur-age discoveries- Amber's role throughout ancient civilizations, mythology, religion, and trade- How amber is identified, tested, and authenticated- Common treatments, enhancements, reconstructions, and counterfeit materials- Buying, valuing, and collecting amber with confidence- Amber jewellery, carving techniques, restoration, and long-term care- The latest scientific research and future discoveries in paleontology and gemologyWritten in a clear and accessible style, this guide combines geology, history, gemology, archaeology, paleontology, and practical collecting advice into one definitive volume. Complex scientific concepts are explained in straightforward language, making the book suitable for both beginners and experienced collectors.Whether you want to identify genuine amber, understand what determines its value, learn about ancient fossil inclusions, or simply appreciate one of nature's most extraordinary creations, this book offers the knowledge and insight to become a more informed enthusiast.If you've ever wanted to understand everything there is to know about amber, this is the guide you've been looking for.…

Taschenbuch. Condición: Neu. Neuware.

Taschenbuch. Condición: Neu. Neuware.

Taschenbuch. Condición: Neu. Neuware.

Taschenbuch. Condición: Neu. Neuware.

Taschenbuch. Condición: Neu. Neuware.

Paperback. Condición: new. Paperback. Discover the complete world of amber with The Ultimate Guide to Amber-a comprehensive reference covering fossilized tree resin, Baltic amber, Dominican amber, amber fossils, gemstone identification, collecting, jewellery, valuation, and scientific discoveries.Amber is far more than a beautiful golden gemstone. Formed from ancient tree resin over millions of years, it preserves an extraordinary record of prehistoric life, including insects, plants, feathers, and even small vertebrates. It has fascinated civilizations for thousands of years, inspired myths and legends, adorned royalty, and continues to be one of the world's most unique organic gemstones.Whether you are a collector, jeweller, gem enthusiast, geology student, fossil lover, or simply curious about this remarkable natural material, The Ultimate Guide to Amber provides an in-depth exploration of every aspect of amber-from its origins in ancient forests to its place in modern science and jewellery.Inside you'll discover: - How amber forms over millions of years from tree resin- The differences between amber, copal, and synthetic imitations- Baltic, Dominican, Burmese, Mexican, and other important amber varieties- Rare colours including blue, green, red, and white amber- The fascinating world of fossil inclusions, from insects to dinosaur-age discoveries- Amber's role throughout ancient civilizations, mythology, religion, and trade- How amber is identified, tested, and authenticated- Common treatments, enhancements, reconstructions, and counterfeit materials- Buying, valuing, and collecting amber with confidence- Amber jewellery, carving techniques, restoration, and long-term care- The latest scientific research and future discoveries in paleontology and gemologyWritten in a clear and accessible style, this guide combines geology, history, gemology, archaeology, paleontology, and practical collecting advice into one definitive volume. Complex scientific concepts are explained in straightforward language, making the book suitable for both beginners and experienced collectors.Whether you want to identify genuine amber, understand what determines its value, learn about ancient fossil inclusions, or simply appreciate one of nature's most extraordinary creations, this book offers the knowledge and insight to become a more informed enthusiast.If you've ever wanted to understand everything there is to know about amber, this is the guide you've been looking for. This item is printed on demand. Shipping may be from multiple locations in the US or from the UK, depending on stock availability.…

Paperback. Condición: new. Paperback. Green diamonds, natural green diamonds, fancy green diamonds, rare colored diamonds, green diamond grading, green diamond value, green diamond investment-this guide explores one of the most mysterious and desirable categories in the world of natural fancy color diamonds.The Ultimate Guide to Green Diamonds is a complete introduction to the science, history, rarity, grading, valuation, collecting, and investment potential of natural green diamonds. Formed over immense geological time and often colored by natural radiation exposure, green diamonds are among the most fascinating gemstones ever discovered.Inside, readers will discover how green diamonds receive their color, why natural green diamonds are so difficult to authenticate, and how laboratories distinguish natural color from treated or enhanced stones. The book explores famous green diamonds, historic discoveries, auction records, grading terminology, color modifiers, and the market forces that influence value.Readers will learn: - What makes a diamond naturally green- Why green diamonds are so rare- How radiation can create green coloration- The difference between natural, treated, and laboratory-grown green diamonds- How Fancy Light, Fancy, Fancy Intense, and Fancy Vivid Green diamonds are graded- Why origin-of-color determination is crucial- Which secondary hues affect desirability and value- How cut, clarity, and carat weight influence price- The history of famous green diamonds such as the Dresden Green- How collectors evaluate documentation, rarity, provenance, and investment potential- How to buy, insure, store, and preserve green diamonds intelligentlyCombining gemological science, collector insight, historical context, and practical buying guidance, The Ultimate Guide to Green Diamonds is an essential resource for collectors, investors, jewelers, gemology students, diamond dealers, and anyone fascinated by rare colored diamonds. This item is printed on demand. Shipping may be from multiple locations in the US or from the UK, depending on stock availability.…

Paperback. Condición: new. Paperback. Discover the complete story of the world's most spectacular spinel.Mahenge spinel has become one of the most sought-after gemstones on Earth. Renowned for its breathtaking neon pink, vivid red, hot pink, lavender, and cobalt-blue colors, this extraordinary gemstone from Tanzania has captivated collectors, gemologists, investors, and luxury jewelers worldwide.Written by Hans J. Steinberg, a gemstone expert with over 40 years of experience in the international gem trade, this comprehensive guide explores every aspect of Mahenge spinel-from its geological origins deep within the Earth to its remarkable rise as one of the most valuable modern collector gemstones.Whether you are an experienced gem collector, jewelry enthusiast, gemstone investor, lapidary, jeweler, or someone fascinated by rare natural treasures, this book provides an authoritative and accessible reference unlike any other.Inside you'll discover: - The discovery and fascinating history of Mahenge spinel in Tanzania- The geology and mineralogy behind its legendary colors- How chromium, cobalt, and fluorescence create its famous neon glow- Every major Mahenge spinel color, including pink, red, purple, lavender, orange-pink, and blue- Mining methods, ethical sourcing, and the journey from mine to market- How to judge color, clarity, cut, carat weight, brilliance, and overall quality- Treatments, synthetic spinels, imitations, and how to avoid expensive mistakes- The world's finest Mahenge spinels, famous specimens, auction records, and museum-quality gems- Investing in Mahenge spinel, historical price trends, market cycles, supply versus demand, and long-term outlook- Expert guidance on buying, selling, certification, insurance, storage, and choosing reputable dealers- In-depth explanations of GIA, SSEF, Guebelin, Lotus Gemology, AGL, and other leading gem laboratories- Predictions for the future of Mahenge spinel over the next 20-50 yearsDrawing on decades of professional experience and the latest gemological research, this book separates fact from myth while providing practical advice for both beginners and advanced collectors.If you love rare gemstones, spinel, ruby, sapphire, alexandrite, Paraiba tourmaline, mineral collecting, fine jewelry, gem investing, gemology, lapidary arts, crystal collecting, precious stones, colored gemstones, or natural minerals, this book belongs in your library.Everything There Is to Know About the Elusive Mahenge Spinel is more than a gemstone guide-it is the definitive reference to one of the most extraordinary gemstone discoveries of the twenty-first century. This item is printed on demand. Shipping may be from multiple locations in the US or from the UK, depending on stock availability.…

Paperback. Condición: new. Paperback. Jeremejevite, rare gemstones, gemstone collecting, mineral identification, gemology, gemstone investing, and crystal collecting-if you want to learn everything there is to know about one of the world's rarest and most elusive gemstones, this comprehensive guide is for you.Jeremejevite is among the most coveted collector gemstones on Earth. Exceptionally scarce, naturally beautiful, and found in only a handful of locations worldwide, it has fascinated gemologists, mineral collectors, jewelers, and investors for decades. Yet despite its rarity, surprisingly little reliable information exists in one place.The Ultimate Guide to Jeremejevite brings together decades of gemological knowledge in a single, authoritative volume.Written by gemologist and mineral specialist Hans J. Steinberg, drawing on over 40 years of experience, this book explores every aspect of Jeremejevite-from its discovery in Siberia to the world-famous Namibian deposits that produce today's finest gemstones.Inside you'll discover: - What Jeremejevite is and why it is one of the world's rarest gemstones- Its fascinating history and geological formation- Physical and optical properties explained in plain English- Every major source, including Namibia, Russia, Madagascar, Myanmar, Tajikistan, and Germany- How gem-quality crystals are mined and recovered- The colors, clarity, and characteristics that determine value- How experts identify Jeremejevite and distinguish it from similar gemstones- Treatments, synthetics, and common imitations- Buying advice and how to avoid costly mistakes- Collecting strategies for both crystals and faceted gems- Investment potential, market trends, and auction performance- The future of Jeremejevite and its place among the world's greatest collector gemstonesWhether you are an experienced collector, professional jeweler, gemology student, investor, museum enthusiast, or simply fascinated by Earth's rarest natural treasures, this book provides a detailed yet accessible reference that you will return to for years.If you are searching for the definitive book on Jeremejevite, rare gemstones, gemstone identification, mineral collecting, or gemstone investing, your search ends here. This item is printed on demand. Shipping may be from multiple locations in the US or from the UK, depending on stock availability.…

Paperback. Condición: new. Paperback. Kyawthuite is so rare that the scientific description of the mineral was based on a single known natural specimen: a remarkable reddish-orange crystal from the legendary gem-producing region of Mogok, Myanmar.Everything There Is to Know About Kyawthuite is a focused guide to one of the rarest and most unusual minerals ever formally recognized by mineralogical science. Written by Hans J. Steinberg, this book explores the discovery, composition, crystal structure, physical properties, geological origin and extraordinary rarity of a mineral that occupies a unique place at the intersection of gemology, mineralogy and crystallography.Kyawthuite, with the chemical formula Bi3Sb5O4, is a bismuth-antimony oxide mineral first approved as a new mineral species by the International Mineralogical Association in 2015. The original specimen was recovered from alluvial deposits near Mogok and was eventually faceted into a 1.61-carat gemstone. Its combination of extreme rarity, unusual chemistry and gem-quality transparency has made kyawthuite one of the most fascinating mineralogical discoveries of the modern era.This book examines the complete story behind this extraordinary mineral, including: - The discovery and scientific recognition of kyawthuite- The mineral-rich geology of Mogok, Myanmar- Kyawthuite's chemical composition and Bi-Sb oxide chemistry- Its monoclinic crystal structure and crystallographic properties- Colour, transparency, adamantine lustre and other physical characteristics- Hardness, cleavage, fracture, density and optical properties- The geological conditions that may have produced kyawthuite- Its relationship to other bismuth and antimony minerals- Scientific methods used to identify exceptionally rare minerals- The challenges of distinguishing natural kyawthuite from synthetic compounds and similar materials- The significance of the original 1.61-carat faceted specimen- Why so few specimens have been discovered- The role of museums, laboratories and mineralogical institutions in documenting new mineral species- Kyawthuite's importance to mineral collectors, gemologists and researchers- What its discovery reveals about the enormous mineralogical diversity still hidden within the Earth's crustRather than treating kyawthuite simply as an exceptionally rare gemstone, this guide places the mineral within its broader scientific context. Its crystal chemistry, geological environment and unusual combination of bismuth and antimony provide insights into the processes capable of producing mineral species that may exist only under extremely specific natural conditions.Everything There Is to Know About Kyawthuite is intended for mineral collectors, gemologists, geology students, crystallography enthusiasts, rare gemstone collectors and anyone fascinated by the Earth's most unusual natural materials.For readers interested in rare minerals, exotic gemstones, mineral identification, gemology, crystallography, Myanmar gemstones or the geology of Mogok, kyawthuite represents an extraordinary case study: a mineral whose entire known scientific history began with one tiny orange crystal.A complete introduction to the discovery, mineralogy, rarity, identification and scientific significance of one of Earth's rarest minerals. This item is printed on demand. Shipping may be from multiple locations in the US or from the UK, depending on stock availability.…

Condición: New. Print on Demand.

Condición: New. Print on Demand.

Condición: New. Print on Demand.

Condición: New. Print on Demand.

Condición: New. Print on Demand.

Condición: New. Print on Demand.

Condición: New. Print on Demand.